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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32e; envelope-from=philmd@linaro.org; helo=mail-wm1-x32e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1673254441197100003 Define TYPE_GPIO_I2C in the public "hw/i2c/bitbang_i2c.h" header and use it in hw/arm/musicpal.c. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- hw/arm/musicpal.c | 3 ++- hw/i2c/bitbang_i2c.c | 1 - include/hw/i2c/bitbang_i2c.h | 2 ++ 3 files changed, 4 insertions(+), 2 deletions(-) diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c index b65c020115..813232682f 100644 --- a/hw/arm/musicpal.c +++ b/hw/arm/musicpal.c @@ -25,6 +25,7 @@ #include "hw/block/flash.h" #include "ui/console.h" #include "hw/i2c/i2c.h" +#include "hw/i2c/bitbang_i2c.h" #include "hw/irq.h" #include "hw/or-irq.h" #include "hw/audio/wm8750.h" @@ -1300,7 +1301,7 @@ static void musicpal_init(MachineState *machine) =20 dev =3D sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE, qdev_get_gpio_in(pic, MP_GPIO_IRQ)); - i2c_dev =3D sysbus_create_simple("gpio_i2c", -1, NULL); + i2c_dev =3D sysbus_create_simple(TYPE_GPIO_I2C, -1, NULL); i2c =3D (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c"); =20 lcd_dev =3D sysbus_create_simple(TYPE_MUSICPAL_LCD, MP_LCD_BASE, NULL); diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index e9a0612a04..ac84bf0262 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -162,7 +162,6 @@ void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus = *bus) =20 /* GPIO interface. */ =20 -#define TYPE_GPIO_I2C "gpio_i2c" OBJECT_DECLARE_SIMPLE_TYPE(GPIOI2CState, GPIO_I2C) =20 struct GPIOI2CState { diff --git a/include/hw/i2c/bitbang_i2c.h b/include/hw/i2c/bitbang_i2c.h index 92334e9016..a079e6d70f 100644 --- a/include/hw/i2c/bitbang_i2c.h +++ b/include/hw/i2c/bitbang_i2c.h @@ -3,6 +3,8 @@ =20 #include "hw/i2c/i2c.h" =20 +#define TYPE_GPIO_I2C "gpio_i2c" + typedef struct bitbang_i2c_interface bitbang_i2c_interface; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::332; envelope-from=philmd@linaro.org; helo=mail-wm1-x332.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1673254579923100003 Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- hw/i2c/bitbang_i2c.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index ac84bf0262..e41cb63daa 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -165,9 +165,10 @@ void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus= *bus) OBJECT_DECLARE_SIMPLE_TYPE(GPIOI2CState, GPIO_I2C) =20 struct GPIOI2CState { + /*< private >*/ SysBusDevice parent_obj; + /*< public >*/ =20 - MemoryRegion dummy_iomem; bitbang_i2c_interface bitbang; int last_level; qemu_irq out; @@ -188,12 +189,8 @@ static void gpio_i2c_init(Object *obj) { DeviceState *dev =3D DEVICE(obj); GPIOI2CState *s =3D GPIO_I2C(obj); - SysBusDevice *sbd =3D SYS_BUS_DEVICE(obj); I2CBus *bus; =20 - memory_region_init(&s->dummy_iomem, obj, "gpio_i2c", 0); - sysbus_init_mmio(sbd, &s->dummy_iomem); - bus =3D i2c_init_bus(dev, "i2c"); bitbang_i2c_init(&s->bitbang, bus); =20 --=20 2.38.1 From nobody Sun Feb 8 22:17:33 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1673254339; cv=none; d=zohomail.com; s=zohoarc; b=Ao7bb/A7gysbQR9gQJKRllokpMFKIPa/Ut6iGkKCWF9nRqpfvNxFF6uNpon+u4bZpkD+V8iRQAsDAPmWx10YJw5CBcWkrbEXakfjlMjbcNTRg5eWjBD5KXq4YhZEQ2Z+vxVGXhC0YoU8hZKRqR355N+TIS/TSXDv1Yc9j1sx3zk= ARC-Message-Signature: i=1; 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Mon, 09 Jan 2023 00:41:37 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Peter Maydell , Thomas Huth , qemu-arm@nongnu.org, qemu-trivial@nongnu.org, Jan Kiszka , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 3/5] hw/i2c/bitbang_i2c: Change state calling bitbang_i2c_set_state() helper Date: Mon, 9 Jan 2023 09:41:19 +0100 Message-Id: <20230109084121.72138-4-philmd@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230109084121.72138-1-philmd@linaro.org> References: <20230109084121.72138-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=philmd@linaro.org; helo=mail-wm1-x32c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1673254340629100003 Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- hw/i2c/bitbang_i2c.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index e41cb63daa..bf4b781393 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -26,13 +26,19 @@ do { printf("bitbang_i2c: " fmt , ## __VA_ARGS__); } wh= ile (0) #define DPRINTF(fmt, ...) do {} while(0) #endif =20 +static void bitbang_i2c_set_state(bitbang_i2c_interface *i2c, + bitbang_i2c_state state) +{ + i2c->state =3D state; +} + static void bitbang_i2c_enter_stop(bitbang_i2c_interface *i2c) { DPRINTF("STOP\n"); if (i2c->current_addr >=3D 0) i2c_end_transfer(i2c->bus); i2c->current_addr =3D -1; - i2c->state =3D STOPPED; + bitbang_i2c_set_state(i2c, STOPPED); } =20 /* Set device data pin. */ @@ -69,7 +75,7 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line,= int level) if (level =3D=3D 0) { DPRINTF("START\n"); /* START condition. */ - i2c->state =3D SENDING_BIT7; + bitbang_i2c_set_state(i2c, SENDING_BIT7); i2c->current_addr =3D -1; } else { /* STOP condition. */ @@ -96,7 +102,7 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line= , int level) case SENDING_BIT7 ... SENDING_BIT0: i2c->buffer =3D (i2c->buffer << 1) | data; /* will end up in WAITING_FOR_ACK */ - i2c->state++;=20 + bitbang_i2c_set_state(i2c, i2c->state + 1); return bitbang_i2c_ret(i2c, 1); =20 case WAITING_FOR_ACK: @@ -117,13 +123,14 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int l= ine, int level) * device we were sending to decided to NACK us). */ DPRINTF("Got NACK\n"); + bitbang_i2c_set_state(i2c, SENT_NACK); bitbang_i2c_enter_stop(i2c); return bitbang_i2c_ret(i2c, 1); } if (i2c->current_addr & 1) { - i2c->state =3D RECEIVING_BIT7; + bitbang_i2c_set_state(i2c, RECEIVING_BIT7); } else { - i2c->state =3D SENDING_BIT7; + bitbang_i2c_set_state(i2c, SENDING_BIT7); } return bitbang_i2c_ret(i2c, 0); } @@ -134,18 +141,18 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int l= ine, int level) case RECEIVING_BIT6 ... RECEIVING_BIT0: data =3D i2c->buffer >> 7; /* will end up in SENDING_ACK */ - i2c->state++; + bitbang_i2c_set_state(i2c, i2c->state + 1); i2c->buffer <<=3D 1; return bitbang_i2c_ret(i2c, data); =20 case SENDING_ACK: - i2c->state =3D RECEIVING_BIT7; if (data !=3D 0) { DPRINTF("NACKED\n"); - i2c->state =3D SENT_NACK; + bitbang_i2c_set_state(i2c, SENT_NACK); i2c_nack(i2c->bus); } else { DPRINTF("ACKED\n"); + bitbang_i2c_set_state(i2c, RECEIVING_BIT7); } return bitbang_i2c_ret(i2c, 1); } --=20 2.38.1 From nobody Sun Feb 8 22:17:33 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1673253750; cv=none; d=zohomail.com; s=zohoarc; b=NQDX+VgDTV5VaQpT/FjX/Mk3swTg4jTnkG6Jinde3AVD/nL03qobY1C+hmaMQr80HDUi3RTs6kD5grEfJfAMN38aYWxgFFdFfaLCG1UydYfGAWfASGt4qQulv9FTYxHKsElNzWcebv+8aqbn7aNxSZpcWaV1fXLEuBceXHZ6y00= ARC-Message-Signature: i=1; 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Mon, 09 Jan 2023 00:41:42 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Peter Maydell , Thomas Huth , qemu-arm@nongnu.org, qemu-trivial@nongnu.org, Jan Kiszka , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 4/5] hw/i2c/bitbang_i2c: Trace state changes Date: Mon, 9 Jan 2023 09:41:20 +0100 Message-Id: <20230109084121.72138-5-philmd@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230109084121.72138-1-philmd@linaro.org> References: <20230109084121.72138-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=philmd@linaro.org; helo=mail-wm1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1673253751599100003 Trace bitbang state machine changes with trace events. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- hw/i2c/bitbang_i2c.c | 34 +++++++++++++++++++++++++++++----- hw/i2c/trace-events | 3 +++ 2 files changed, 32 insertions(+), 5 deletions(-) diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index bf4b781393..9fa19cf8b1 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -16,6 +16,7 @@ #include "hw/sysbus.h" #include "qemu/module.h" #include "qom/object.h" +#include "trace.h" =20 //#define DEBUG_BITBANG_I2C =20 @@ -26,15 +27,42 @@ do { printf("bitbang_i2c: " fmt , ## __VA_ARGS__); } wh= ile (0) #define DPRINTF(fmt, ...) do {} while(0) #endif =20 +/* bitbang_i2c_state enum to name */ +static const char *sname[] =3D { +#define NAME(e) [e] =3D stringify(e) + NAME(STOPPED), + [SENDING_BIT7] =3D "SENDING_BIT7 (START)", + NAME(SENDING_BIT6), + NAME(SENDING_BIT5), + NAME(SENDING_BIT4), + NAME(SENDING_BIT3), + NAME(SENDING_BIT2), + NAME(SENDING_BIT1), + NAME(SENDING_BIT0), + NAME(WAITING_FOR_ACK), + [RECEIVING_BIT7] =3D "RECEIVING_BIT7 (ACK)", + NAME(RECEIVING_BIT7), + NAME(RECEIVING_BIT6), + NAME(RECEIVING_BIT5), + NAME(RECEIVING_BIT4), + NAME(RECEIVING_BIT3), + NAME(RECEIVING_BIT2), + NAME(RECEIVING_BIT1), + NAME(RECEIVING_BIT0), + NAME(SENDING_ACK), + NAME(SENT_NACK) +#undef NAME +}; + static void bitbang_i2c_set_state(bitbang_i2c_interface *i2c, bitbang_i2c_state state) { + trace_bitbang_i2c_state(sname[i2c->state], sname[state]); i2c->state =3D state; } =20 static void bitbang_i2c_enter_stop(bitbang_i2c_interface *i2c) { - DPRINTF("STOP\n"); if (i2c->current_addr >=3D 0) i2c_end_transfer(i2c->bus); i2c->current_addr =3D -1; @@ -73,7 +101,6 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line= , int level) return bitbang_i2c_nop(i2c); } if (level =3D=3D 0) { - DPRINTF("START\n"); /* START condition. */ bitbang_i2c_set_state(i2c, SENDING_BIT7); i2c->current_addr =3D -1; @@ -122,7 +149,6 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int lin= e, int level) /* NACK (either addressing a nonexistent device, or the * device we were sending to decided to NACK us). */ - DPRINTF("Got NACK\n"); bitbang_i2c_set_state(i2c, SENT_NACK); bitbang_i2c_enter_stop(i2c); return bitbang_i2c_ret(i2c, 1); @@ -147,11 +173,9 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int li= ne, int level) =20 case SENDING_ACK: if (data !=3D 0) { - DPRINTF("NACKED\n"); bitbang_i2c_set_state(i2c, SENT_NACK); i2c_nack(i2c->bus); } else { - DPRINTF("ACKED\n"); bitbang_i2c_set_state(i2c, RECEIVING_BIT7); } return bitbang_i2c_ret(i2c, 1); diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events index af181d43ee..2a479c1c12 100644 --- a/hw/i2c/trace-events +++ b/hw/i2c/trace-events @@ -1,5 +1,8 @@ # See docs/devel/tracing.rst for syntax documentation. =20 +# bitbang_i2c.c +bitbang_i2c_state(const char *old_state, const char *new_state) "state %s = -> %s" + # core.c =20 i2c_event(const char *event, uint8_t address) "%s(addr:0x%02x)" --=20 2.38.1 From nobody Sun Feb 8 22:17:33 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1673254388; cv=none; d=zohomail.com; s=zohoarc; b=L7ojW+fIasSYEm/IdRzD2tt4SAkKfWgLVfTEXgo80i0pCQSodBUQzN8pLE+I5D/0BC4FvqCaywVL2iCCeNmVGUW+b/YBP7om9BeoFIWkW8zRmQ92u5FJ0y/iIUdkz8w2t+RL9sNTZD7NQCyxtKpPhHwtfMOim/NpCi3OZJ93Mxs= ARC-Message-Signature: i=1; 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Mon, 09 Jan 2023 00:41:47 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Peter Maydell , Thomas Huth , qemu-arm@nongnu.org, qemu-trivial@nongnu.org, Jan Kiszka , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 5/5] hw/i2c/bitbang_i2c: Convert DPRINTF() to trace events Date: Mon, 9 Jan 2023 09:41:21 +0100 Message-Id: <20230109084121.72138-6-philmd@linaro.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230109084121.72138-1-philmd@linaro.org> References: <20230109084121.72138-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=philmd@linaro.org; helo=mail-wm1-x330.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1673254390712100001 Convert the remaining DPRINTF debug macro uses to tracepoints. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson --- hw/i2c/bitbang_i2c.c | 18 ++++++------------ hw/i2c/trace-events | 4 ++++ 2 files changed, 10 insertions(+), 12 deletions(-) diff --git a/hw/i2c/bitbang_i2c.c b/hw/i2c/bitbang_i2c.c index 9fa19cf8b1..ffc5b95410 100644 --- a/hw/i2c/bitbang_i2c.c +++ b/hw/i2c/bitbang_i2c.c @@ -18,14 +18,6 @@ #include "qom/object.h" #include "trace.h" =20 -//#define DEBUG_BITBANG_I2C - -#ifdef DEBUG_BITBANG_I2C -#define DPRINTF(fmt, ...) \ -do { printf("bitbang_i2c: " fmt , ## __VA_ARGS__); } while (0) -#else -#define DPRINTF(fmt, ...) do {} while(0) -#endif =20 /* bitbang_i2c_state enum to name */ static const char *sname[] =3D { @@ -72,8 +64,10 @@ static void bitbang_i2c_enter_stop(bitbang_i2c_interface= *i2c) /* Set device data pin. */ static int bitbang_i2c_ret(bitbang_i2c_interface *i2c, int level) { + trace_bitbang_i2c_data(i2c->last_clock, i2c->last_data, + i2c->device_out, level); i2c->device_out =3D level; - //DPRINTF("%d %d %d\n", i2c->last_clock, i2c->last_data, i2c->device_o= ut); + return level & i2c->last_data; } =20 @@ -138,11 +132,11 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int l= ine, int level) =20 if (i2c->current_addr < 0) { i2c->current_addr =3D i2c->buffer; - DPRINTF("Address 0x%02x\n", i2c->current_addr); + trace_bitbang_i2c_addr(i2c->current_addr); ret =3D i2c_start_transfer(i2c->bus, i2c->current_addr >> 1, i2c->current_addr & 1); } else { - DPRINTF("Sent 0x%02x\n", i2c->buffer); + trace_bitbang_i2c_send(i2c->buffer); ret =3D i2c_send(i2c->bus, i2c->buffer); } if (ret) { @@ -162,7 +156,7 @@ int bitbang_i2c_set(bitbang_i2c_interface *i2c, int lin= e, int level) } case RECEIVING_BIT7: i2c->buffer =3D i2c_recv(i2c->bus); - DPRINTF("RX byte 0x%02x\n", i2c->buffer); + trace_bitbang_i2c_recv(i2c->buffer); /* Fall through... */ case RECEIVING_BIT6 ... RECEIVING_BIT0: data =3D i2c->buffer >> 7; diff --git a/hw/i2c/trace-events b/hw/i2c/trace-events index 2a479c1c12..b0ab237b0f 100644 --- a/hw/i2c/trace-events +++ b/hw/i2c/trace-events @@ -2,6 +2,10 @@ =20 # bitbang_i2c.c bitbang_i2c_state(const char *old_state, const char *new_state) "state %s = -> %s" +bitbang_i2c_addr(uint8_t addr) "Address 0x%02x" +bitbang_i2c_send(uint8_t byte) "TX byte 0x%02x" +bitbang_i2c_recv(uint8_t byte) "RX byte 0x%02x" +bitbang_i2c_data(unsigned dat, unsigned clk, unsigned old_out, unsigned ne= w_out) "dat %u clk %u out %u -> %u" =20 # core.c =20 --=20 2.38.1